Increase of heat utilization coefficient of micro-TPP fuel based on ice with air-cooling due to cogeneration

D. Sinelnikov, P. Shchinnikov
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引用次数: 1

Abstract

The market is widely represented by a number of micro HPP (gasoline generators) based on internal combustion engines (ICE) with air cooling. Such setups are used in everyday life, by professional builders, geologists, soldiers and rescuers in the areas of emergencies, and in the regions with lack of infrastructure. Improving the efficiency of such plants will reduce the amount of fuel supplied in the areas of their operation. This paper shows the main provisions of the research technique of the experimental cogeneration heat and power plant on the basis of an air-cooled carburetor combustion engine which is based on the mechanism of energy balances. The working capacity of the technique on various loads of the plant operation is shown. The conditions for determining the effect which consist in bringing the comparable variants to the same energy potential on the output of products are formulated. As comparison variants, it is necessary to consider electric power supply from the gas generator, and heat supply from the heat gun which, in turn, can use gas, liquid fuel or electric power as the primary energy carrier. The basic schemes of realization of cogeneration in the conditions of reduction to the same energy effect are presented. It is shown that the use of cogeneration obtained from heat of air flow cooling the cylinder head for micro HPP based on carbureted ICE with air cooling increases the coefficient of fuel heat utilization () by 1.52 times. The setup with 2.4 kW capacity for 3035 minutes can increase the temperature of the room air in the volume of 150 m3 (for example, in a staff or medical room) by  3C at  = 0.3. It is shown that cogeneration for mini-HPPs on the basis of air-cooled ICE after installation of a special heat exchanger for waste gas heat recovery allows increasing the fuel heat utilization coefficient up to  = 0.5. It is shown that a gasoline generator with cogeneration is more efficient than a gasoline generator in combination with a heat gun and due to fuel cost saving can be renewed every four years.
热电联产提高冷冷冰微tpp燃料的热利用系数
市场上广泛的代表是一些基于内燃机(ICE)和空气冷却的微型HPP(汽油发电机)。这种装置在日常生活中被专业建筑商、地质学家、士兵和紧急情况地区的救援人员以及缺乏基础设施的地区使用。提高这些发电厂的效率将减少其运行区域的燃料供应量。本文介绍了基于能量平衡机理的气冷化油器内燃机实验热电联产热电厂研究技术的主要规定。给出了该技术在电厂运行中各种负荷下的工作能力。提出了确定使具有可比性的变异体具有相同的能势对产物的输出所产生的影响的条件。作为比较变体,需要考虑燃气发生器的供电和热风枪的供热,热风枪又可以使用燃气、液体燃料或电力作为主要的能量载体。提出了在同等能量效应条件下实现热电联产的基本方案。结果表明,采用空气冷却,利用气流热产生的热电联产对汽缸盖进行冷却,可使燃油热利用系数提高1.5 × 2倍。容量为2.4 kW,持续30 ~ 35分钟的设置可以使容积为150 m3的房间(例如,在员工室或医务室)的空气温度升高3℃,温度为0.3。结果表明,在安装专用的废气热回收换热器后,小型热电联产的燃料热利用系数可提高至0.5。结果表明,采用热电联产的汽油发电机比采用热风枪的汽油发电机效率更高,而且由于燃料成本节省,每四年可以更新一次。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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