Chapter 1 PROBLEM 1.1 The outer surface of a 0.2m-thick concrete wall is kept at a temperature of –5°C‚ while the inner surface is kept at 20°C. The thermal conductivity of the concrete is 1.2 W/(m K). Determine the heat loss through a wall 10 m long and 3 m high. GIVEN 10 m long‚ 3 m high‚ and 0.2 m thick concrete wall Thermal conductivity of the concrete (k) = 1.2 W/(m K) Temperature of the inner surface (Ti) = 20°C Temperature of the outer surface (To) = –5°C FIND The heat loss through
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Delegating-Delegating involve trusting‚ because some of the chefs may fear to delegate‚ but in reality‚ both chef and staff work better when each concentrates on what each does best. Classification of equipment Large equipment: Fixed items like stove‚ ovens‚ fridge‚ salamanders and steamers. Mechanical equipment: Can be large or small; electrically operated or engineered to be labour saving. Example: Mixer‚ slicer‚ microwaves‚ chopper and hot box. Utensils and small equipment: Small hand operated pieces
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Heat‚ Kinetic Energy and Temperature SCI 110 02/01/2013 The study of heat relate to Kinetic theory of matter is that universe is made up of matter and energy. Matter is made up of atoms and molecules. Atoms and molecules are always in motion because energy. Energy forces them to contact into each other or vibrate back and forth. When this happens molecules and atoms
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HTAP 100 Orientation Summery Assignment Kitchen Operation Instructions: Please print this assignment and brig it completed to your class Pre-Class Preparation 1. How does a student prepare himself for class? (List 3 duties.) Answer： student need to 1. Wash hands 2. Wear correct uniform 3. on time 2. Name 3 parts of a recipe Answer： 1. Method 2. Imperial/Metric 3. Ingredients 3. Where a student does obtain information regarding his/her assigned position
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Heat transfer Heat transfer is the transition of thermal energy from a hotter object to a cooler object ("object" in this sense designating a complex collection of particles which is capable of storing energy in many different ways). When an object or fluid is at a different temperature than its surroundings or another object‚ transfer of thermal energy‚ also known as heat transfer‚ or heat exchange‚ occurs in such a way that the body and the surroundings reach thermal equilibrium‚ this means that
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Maslow’s needs: physiological (food‚ shelter) and Safety and Security. * Psychological-This is the study of how people interact with their environment; products are consumed to enhance their well being‚ for example air fresheners‚ furniture and convection ovens. OLD SPICE AFTER SHAVE LOTION Old Spice is a prominent American brand of male grooming products. It is manufactured by Procter & Gamble‚ which acquired the brand in 1990 from the Shulton Company. Consumer is buying the product old
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DESIGN OF A HEATING ELEMENT FOR INDIRECT HEATING A REPORT SUBMITTED IN THE PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE COMPLETION OF MAJOR PROJECT WORK Project Report By: Kamalpreet Singh (753/08) University Roll No.: 80801114047 Submitted by: Submitted to: Kamalpreet Singh Dr. J.S Oberoi College Roll No: 753/08 Project Coordinator Univ. Roll No: 80801114047 Department of Mechanical Engineering Dept.
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country adding to the baked goods repertoire until someone figured out how to make the chocolate chip cookie. What a day that must have been. Baking Baking is a food cooking method using prolonged dry heat acting by convection‚ rather than by thermal radiation‚ normally in an oven‚ but also in hot ashes‚ or on hot stones.[1] The most common baked item is bread but many other types of foods are baked. Heat is gradually transferred "from the surface of cakes‚ cookies and breads to their centre. As
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I. Pascal’s Principle: ✓ The pressure applied on one part of container with fluid is transmitted equally in all directions. ✓ Pressure on one side is equal to the pressure on the other side of hydraulic press and lift Pascal Law: “The pressure exerted anywhere in a mass of confined liquid is transmitted undiminished in all directions throughout the liquid.” Equation for Pascal’s Principle: P1 = P2 F1 = F2 A1 A2 Problems: 1. The large piston in a hydraulic
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Therefore‚ The Home Depot has decided to extend the time in which small household appliances are available to its customers. Analysis of Pro Forma Data The Home Depot does not usually sell small house appliances like coffee pots‚ toasters‚ mini convection ovens‚ blenders‚ and irons through the year. The mentioned small appliances were only sold during the Christmas season. The Home Depot has decided to extend the time frame in which small appliances could be purchased. In 2014‚ The Home Depot sold
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