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课程主页: https://www.udemy.com/course/practice-test-for-bee-energy-auditor-exam-paper-2/
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课程名称：BEE能源审计员考试实践测试 - 第2部分 课程概述：本课程提供总共5套实践测试题，旨在帮助学员备考BEE能源审计员和能源经理考试。所有测试题均为多项选择题（MCQ），涵盖了相关的内容以及往年考试题目。为方便学习和练习，课程中为数值题提供了简洁的解决方案，帮助学员更高效地掌握各种问题。主要测试内容包括：燃料与燃烧、锅炉、蒸汽系统、炉子、绝热材料与耐火材料、流化床锅炉、热电联产、废热回收和热交换器。 示例问题： 1] 一台油燃料再加热炉的工作温度约为1000°C，平均炉油消耗量为330升/小时。空气预热器后烟气出口温度为820°C。燃烧空气由环境温度35°C加热到215°C。其他数据如下： - 油的比重 = 0.92 - 油的发热量 = 10,200 kcal/kg - 烟气中氧气平均百分比 = 13.5 % - 理论所需空气量 = 14 kg空气/kg油 - 空气比热 = 0.23 kcal/kg°C - 烟气比热 = 0.25 kcal/kg°C 通过这些数据，学员将计算出废气中带走的显热及其占输入能量的百分比。 退款保证：本实践测试包含多样化的问题，保证能有效帮助您备考并顺利通过考试。 关于作者：Kiran Beldar先生为BEE认证能源经理，并且成功通过考试。目前任职于孟买大学，拥有丰富的经验并将这些经验分享给参加本实践测试的学员。 课程大纲：无
In this practice test set, you will get a total 5 five tests to solve and practice. All this five practice test questions are related to the BEE Energy Auditor and Energy Manager Exam. The Questions which are included in the five test is in MCQ format. Most of the relevant and previous years questions are included in the test. For the numerical the shortest solution is provided so, it will be easy for you to study and practice the various questions. The practice tests include the following point-based questions: Fuels and CombustionBoilersSteam SystemFurnacesInsulation and RefractoriesFBC BoilersCogenerationWaste heat recovery Heat ExchangersSample Questions:1] An oil fired reheating furnace has an operating temperature of around 1000 °C. Average furnace oil consumption is 330 litres/hour. Flue gas exit temperature after the air preheater is 820 °C. Combustion air is preheated from ambient temperature of 35 °C to 215°C through the air preheater. The other data are as given belowSpecific gravity of oil = 0.92Calorific value of oil = 10,200 kcal/kgAverage O2 percentage in flue gas = 13.5 %Theoretical air required = 14 kg of air per kg of oilSpecific heat of air = 0.23 kcal/kg°CSpecific heat of flue gas = 0.25 kcal/kg°CThe sensible heat carried away by the exhaust flue gases in kcals/hr and as a percentage of the energy input.Solution: Fuel input = (330 litres/hr x 0.92 kg/litre) = 303.6 kg/hrEnergy Input = (303.6 kg oil/hr x 10,200 kcals/kg oil) = 30,96,720 kcal/hrExcess air = [O2 x 100/(21-O2)] = (13.5 x 100)/(21 - 13.5) = 180 %Theoretical air required = 14 kg of air/kg of oilActual mass of air required = 14 x (1 + 180 /100) = 39.2 kg air/kg of oilMass of flue gas (m) = (39.2 + 1) = 40.2 kg flue gas/kg oilSpecific heat of flue gas (Cp) = 0.25 kcal/kg.oCSensible heat loss in the flue gas = (m x Cp x ΔT)flue gas = (40.2 x 0.25 x (820-35)) Sensible heat loss in the flue gas= 7889.3 kcal/kg of oilSensible heat loss in the flue gas= (7889.3 kcal/kg of oil x 303.6 kg oil/hr)Sensible heat loss in the flue gas = 2395176.3 kcal/hrSensible heat loss in the flue gas as % heat loss to input energy = (2395176.3 / 30,96,720) x 100 = 77.35 %Money Back Guarantee:The practice test involves a diversity of questions, and i am definitely sure i will help you in your exam preparations. And you will pass the exams with this practice test. About Author:Author Mr. Kiran Beldar is BEE Certified Energy Manager and he himself has cleared the exam. He is a professor at Mumbai University. His vast experience is passed on through this practice test.
