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fired heater efficiency calculation

Stability of wall modes in a flexible tube - Cambridge Journals

The asymptotic results (Kumaran 1998b) obtained for Λ ∼ 1 for the flow in a flexible tube are extended to the limit Λ 1 using a numerical scheme, where Λ is the dimensionless parameter Re1/3 (G/ρV 2 ), Re = (ρV R/η) is the Reynolds number, ρ and η are the density and viscosity of the fluid, R is the tube radius and G is the shear modulus of the wall material. The results of this calculation indicate that the least-damped mode becomes unstable when Λ decreases below a transition value at a fixed Reynolds number, or when the Reynolds number increases beyond a transition value at a fixed Λ. The Reynolds number at which there is a transition from stable to unstable perturbations for this mode is determined as a function of the parameter Σ = (ρGR 2 /η 2 ), the scaled wavenumber of the perturbations kR, the ratio of radii of the wall and fluid H and the ratio of viscosities of the wall material and the fluid ηr . For ηr = 0, the Reynolds number at which there is a transition from stable to 1, and the unstable perturbations decreases proportional to Σ 1/2 in the limit Σ neutral stability curves have a rather complex behaviour in the intermediate regime with the possibility of turning points and isolated domains of instability. In the limit Σ 1, the Reynolds number at which there is a transition from stable to unstable perturbations increases proportional to Σ α , where α is between 0.7 and 0.75. An increase in the ratio of viscosities ηr has a complex effect on the Reynolds number for neutrally stable modes, and it is observed that there is a maximum ratio of viscosities at specified values of H at which neutrally stable modes exist; when the ratio of viscosities is greater than this maximum value, perturbations are always stable.

North American Healthcare IT Market worth

This report studies the North America healthcare information technology market (2012 to2017). High costs, disorganized and inefficient delivery systems, high medical and medication error rates, poor communication and care coordination, lack of information support for effective decision-making, and counterproductive payment incentives characterize the present state of healthcare systems. Hence, the need for IT has evolved, as it has the potential to improve workflow, safety, and efficiency within healthcare organizations. The ability to capture, store, exchange, and analyze medical information in electronic form will improve healthcare in many ways. Healthcare IT provides benefits such as improved patient care, increased engagement of patient in healthcare, improved population-based knowledge, development of new tools for medicine, and augmented administrative efficiency. In this report, the North American HCIT market is segmented on the basis of its application, delivery mode, and component. The North American HCIT market, by application is segmented into provider (clinical information technology and non-clinical information technology) and payer, while the market by delivery mode is further categorized as on-premises, web-premises, and cloud-premises. The healthcare information technology by component comprises of hardware, software, and services.

11-inch MacBook Air (PDF) - Apple
by sosalena 0 Comments favorite 1 Viewed Download 0 Times

Date introduced June 10, 2013 Climate Change Greenhouse gas emissions have an impact on the planet’s balance of land, ocean, and air temperatures. Most of Apple’s corporate greenhouse gas emissions come from the production, transport, use, and recycling of its products. Apple seeks to minimize greenhouse gas emissions by setting stringent design-related goals for material and energy efficiency. The chart below provides the estimated greenhouse gas emissions for the 11-inch MacBook Air over its life cycle. Greenhouse Gas Emissions for 11-inch MacBook Air Recycling, 1% Transport, 5% The 11-inch MacBook Air is designed with the following features to reduce environmental impact: Production, 75% Customer use, 19% • Arsenic-free display glass • Mercury-free LED-backlit display • Brominated flame retardant–free Total greenhouse gas emissions: 320 kg CO2e • PVC-free2 • Recyclable aluminum enclosure Meets ENERGY STAR® Version 5.2 requirements Achieves a Gold rating from EPEAT3 Energy Efficiency Because one of the largest portions of product-related greenhouse gas emissions results from actual use, energy efficiency is a key part of each product’s design. Apple products use powerefficient components, and software that intelligently powers them down during periods of inactivity. The result is that MacBook Air is energy efficient right out of the box. The 11-inch MacBook Air outperforms the stringent requirements of the ENERGY STAR Program Requirements for Computers Version 5.2. Using only 5.9W in idle with the display on, it consumes less power than any Mac, and consumes 49 percent less energy than the original MacBook Air. The following table details power consumed in different use modes. Power Consumption for 11-inch MacBook Air Mode 100V 115V 230V Off 0.18W 0.18W 0.26W Sleep 0.65W 0.66W 0.74W Idle—Display off / on

Metro-North Railroad - MTA
by Midene 0 Comments favorite 1 Viewed Download 0 Times

Safety & Security Department President J. Giulietti Chief Safety & Security Officer A.E. Kirsch Safety • District Safety & Security Officers • Industrial Hygiene • Safety Data Analysis • Hazard Analysis Emergency Management Security • Security Command Center (SCC) • Security Systems, Projects, & Technology • Pass Office • Emergency Planning • Fire Protection • Fire Command • Fire Brigades Incident Investigation • Accident Investigation and Reporting • Corrective Actions 2 MTA Metro-North Railroad Priority One Safety Program • Program Goals • Defined Roles & Responsibilities • Injury Reduction Targets • Senior Safety Working Group • Priority One Steering Team Objectives • Corporate Commitment o Safety Statement o 12 Essentials Elements • Line Managers • System Safety Program Plan • District Safety Working Group • General Safety Instructions • Local Safety Working Group • Corporate Health/Safety Policies • 24/7 Safety • Auditing • • • • • Training Efficiency Testing Job Safety Analysis Job Safety Briefings Safety Contacts • Recognition • Communication • Accountability • Metrics and Reporting • Safety Reviews • Incident Investigation • Compliance Programs • Department & Local Programs • Post-incident Management • Office Safety Training MTA Metro-North Railroad 3 Objectives 4 MTA Metro-North Railroad Standards & Policies: Safety Policy & Procedures • General Safety Instructions – Update to be published 1Q 2014 • System Safety Program Plan – Improved 2011 Plan based on FRA and APTA guidelines – Buy-In and acceptance from all departments and labor organizations – Expected 2Q 2014 revision of SSPP • Planned Policy & Procedure Updates for 2014 – Asbestos, Lead, Hearing Conservation, Respiratory Protection, Right to Know, Hearing Conservation, Bloodborne Pathogen Protection, Lock-Out/Tag-Out, Fall Protection, Confined Space 5 MTA Metro-North Railroad

Metro North Regional Employment Board Strategic Plan FY 2013 ...

In the context of today’s changing fiscal landscape on both the state and federal level, the Metro North REB is entering a stage of development that is guided by new opportunities as well as challenges. As it moves forward, the REB must identify creative new approaches, consider diverse sources of funding, and streamline existing systems to optimize efficiency. In addition, undertaking a renewed philosophy of continuous improvement and innovation in program implementation will be crucial to adjusting approaches in workforce development to align with the ever-changing economy. Historically, the education and workforce development systems have been only sporadically, marginally, or indirectly connected to business needs. Although some components of the workforce development system (notably community-based training and employment programs), have a long history of aligning their training with strong employer partnerships, the K-12 and college education systems have been grounded in a philosophy of preparing people for life, by providing a broad, general education, and only targeting training to specific occupations later in the post-secondary experience. In addition, education and workforce development have struggled to keep up with changing technologies and trends in industry, often lacking critical information about where career opportunities exist and what skills and abilities are necessary to take advantage of those options. As a result, education and training are often disconnected from real-time employer needs, and as a result, unemployed youth and adults often lack the necessary skills to enter those jobs that do exist, creating a growing class of disconnected or never connected workers.

fx-991ES PLUS C - Support - Casio
by bodo 0 Comments favorite 5 Viewed Download 0 Times

Contents Important Information ............................................................. 2 Sample Operations .................................................................. 2 Initializing the Calculator ........................................................ 2 Safety Precautions .................................................................. 2 Handling Precautions.............................................................. 2 Removing the Hard Case ........................................................ 3 Turning Power On and Off ...................................................... 3 Adjusting Display Contrast .................................................... 3 Key Markings ........................................................................... 3 Reading the Display ................................................................ 4 Using Menus ............................................................................ 5 Specifying the Calculation Mode .......................................... 5 Configuring the Calculator Setup .......................................... 5 Inputting Expressions and Values ......................................... 7 Recurring Decimal Calculations ......................................... 10 Toggling Calculation Results ............................................... 14 Basic Calculations................................................................. 14 Remainder Calculations ....................................................... 18 Prime Factorization ............................................................... 19 Function Calculations ........................................................... 20 Complex Number Calculations (CMPLX) ........................... 25 Using CALC............................................................................ 26 Using SOLVE.......................................................................... 27 Statistical Calculations (STAT) ............................................. 29 Base-n Calculations (BASE-N) ............................................. 33 Equation Calculations (EQN) ............................................... 35 Matrix Calculations (MATRIX)............................................... 37 Creating a Number Table from Two Functions (TABLE) .... 39 Vector Calculations (VECTOR) ............................................. 41 Inequality Calculations (INEQ) ............................................ 43 Using VERIFY (VERIF) .......................................................... 45 Distribution Calculations (DIST) .......................................... 47 Scientific Constants .............................................................. 50 Metric Conversion ................................................................. 51 Calculation Ranges, Number of Digits, and Precision....... 52 Errors ...................................................................................... 54 Before Assuming Malfunction of the Calculator... ............. 56

AEG/Electrolux standardizes on Z tel® HTN for oven fans and frames

AEG/Electrolux standardizes on Zytel HTN for oven fans and frames ® AEG/Electrolux has standardized on glass-reinforced Zytel®HTN for the high-speed fans and inner glass door support frames in its new Competence range of electric ovens. By Hubert Mueller, DuPont Engineering Polymers, Germany Switching to glass-reinforced Zytel® HTN high performance polyamide from metal means that AEG/Electrolux can standardize the fans and support frames used across its new range of Competence electric ovens. "By moulding these components in Zytel® HTN , we have reduced the overall number of parts used, improved production efficiency and implemented substantial cost savings," said the design director for Electrolux’s Competence range, Horst Meister, who is based at Electrolux’s Central European Oven Development Centre in Rothenburg ob der Tauber (Germany). AEG/Electrolux requires high temperature dimensional stability for the fans, which need to run reliably at continuous temperatures of up to 260 degrees C – necessary when the oven is being automatically cleaned by pyrolysis at up to 500 degrees C. The fans of glass reinforced Zytel® HTN meet this specification with ease. As an added plus, the new high-speed fans also cool down oven door exteriors better than the previous, metal fans. Even after a full hour of hot air operation, the outside surface of the oven doors reach an average of only 40 degrees C, whereas the doors reached up to 80 degrees C when they were cooled by metal fans. The complex design of AEG/ Electrolux’s Competence oven fans means that the mould tool is unusually large; it is about the size of an office desk. This is because seven solid cores were required for the...

12-page brochure on Electrolux Professional Ironers. - Laundrylux

electrolux ironers Nothing short of perfect When perfect flatwork ironing is a must, you can rely on the wide range of Electrolux products to meet your needs. Hotels and restaurants Your customers expect exquisite, crisp sheets and perfectly pressed table linen. Ensuring your customer’s comfort, in every little detail, is your guarantee of business success. But at what cost? The Electrolux range of ironers provides the ergonomics and large choice of options to make this possible, whilst at the same time increasing your profitability. Electrolux ironers provide the perfect complement to your business quality, profitability and growth. Professional laundry It’s simple. Electrolux ironers provide you with increased productivity, absolute reliability and the results both you and your customers are looking for. Medical centres Optimum hygiene, safety and cost-efficiency are just a few of the reasons why Electrolux is the most reliable partner for all healthcare institutions.

1955-56 Tri-5 Chevy - Classic Auto Air

specializing in “AIR CONDITIONING, PARTS AND SYSTEMS” for your classic vehicle “PERFECT FIT SERIES” IN-DASH HEAT/ COOL/ DEFROST 1955 - 1956 CHEVROLET SEDAN WITH DELUXE CONTROLS CONTROL & OPERATING INSTRUCTIONS The controls on your new “Perfect Fit” system. Offers complete comfort capabilities in virtually every driving condition. This includes Temperature control in all of the modes. This system also provides DEHUMIDIFICATION in the defrost mode and the ability to blend the air between Face, Heat, and Defrost modes. FAN SPEED FACE DOOR TEMPERATURE LEVER HEAT / DEFROST DOOR 1 THE PICTURE YOU SEE ON THE FIRST PAGE SHOWS THE CONTROLS IN THE HEAT MODE. THIS MEANS THAT THE AIR WILL BE DISTRIBUTED THROUGH THE HEATER OUTLETS. THIS ALSO HAS THE TEMPERATURE LEVER IN THE COLDEST POSITION. WITH THE CONTROLS IN THIS POSITION YOU WILL GET THE AIR THROUGH THE HEATER OUTLETS AND THE OUTLET TEMPERATURE AT THE COLDEST POSIBBLE DEGREE. CAUTION: ALL OF THE OUTSIDE VENTS MUST BE CLOSED WHEN THE SYSTEM IS IN THE A/C MODE. THIS WILL ALLOW THE A/C SYSTEM TO FUCTION AT ITS MAXIMUM PERFORMANCE LEVEL.

The Soapstone Company
by Soapstonecompany 0 Comments favorite 10 Viewed Download 0 Times

Soapstone firebricks exceed standard specification for firebox brick and residential fireplaces. 2½ inches is the minimum thickness recommended for an operating wood burning fireplace. For a decorative or gas fired fireplace 1¼ inch bricks can be used. There is no better material for the absorption and retention of heat. Soapstone is non flammable, won’t stain like marble and granite, will not stain or trap soot.

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