At present, only about 35% of the energy of the fuel is converted into electrical energy by the generator unit, about 30% is discharged with the exhaust gas, 25% is taken away by the engine cooling water, and other losses such as emission through the fuselage account for about 10%. The power lost by the exhaust gas and heat exchanger is more than useful work.

在我国，目前占燃气发动机燃料近55%热值的废气和冷却水余热资源基本上被白白浪费掉，发动机余热利用技术的就是来实现将原本白白浪费掉的热资源充分利用的系统。

In China, the waste heat resources of exhaust gas and cooling water, which currently account for nearly 55% of the calorific value of gas engine fuel, are basically wasted. The purpose of engine waste heat utilization technology is to realize the full use of the waste heat resources.

随着人民生活质量的提高，制冷和采暖越来越普及，能源消耗越来越大，同时发动机余热资源目前没有得到综合利用，燃油、燃气及电热锅炉和空调在广泛使用，消耗了大量能源。根据发动机余热利用现状，我公司发挥信息和技术优势，研制开发了国内套燃气机余热利用空调，用于我公司办公大楼和会议室的热电联供。

With the improvement of people's quality of life, refrigeration and heating are becoming more and more popular, and energy consumption is increasing. At the same time, engine waste heat resources have not been comprehensively utilized. Oil, gas, electric boilers and central air conditioners are widely used, consuming a lot of energy. According to the current situation of engine waste heat utilization, our company has developed the first set of gas engine waste heat utilization central air conditioner in China, which is used for cogeneration of heat and power in our office building and conference room.

在燃气机组发电的同时，以机组废气的热量为能源，烟气通过特制的热交换系统加热介质水，使水温达到规定温度，通过溴化锂冷水机组制冷或制热，通过风机盘管空调器给房间制冷或供热。系统原理如下图所示：

At the same time of generating electricity from the gas unit, the heat of the unit exhaust gas is used as the energy source. The flue gas heats the medium water through the special heat exchange system to make the water temperature reach the specified temperature. The room is cooled or heated by the lithium bromide water chiller, and the room is cooled or heated by the fan coil air conditioner. The system principle is shown in the following figure:

应用范围

Scope of application

1、办公大楼、宾馆、商场的热电联供制冷、供热系统。

1. Cogeneration refrigeration and heating systems for office buildings, hotels and shopping malls.

2、利用燃气发电站余热资源为联合站加热原油。

2. Use the waste heat resources of gas power station to heat crude oil for the combined station.

概括的来说，凡是需要热能并且已有机组或燃气资源丰富的地方都可以推广应用。

In general, it can be popularized and applied in places where heat energy is needed and there are existing units or rich gas resources.

发动机的废气余热利用在我国还是一个新兴的科技领域，是发展的必然趋势，我们还要不断学习国外在这方面的先进技术，提高水平，多与广大用户交流和学习，提高余热利用效率，扩大应用范围，以使其扩展到更宽的领域，更好的为用户服务，使用户达到收益化。

The utilization of waste heat from engine exhaust is still a new scientific and technological field in China, which is an inevitable trend of development. We should continue to learn from foreign advanced technologies in this field, improve our level, communicate and learn more with the majority of users, improve the efficiency of waste heat utilization, expand the scope of application, so as to expand it to a wider field, better serve users, and maximize the benefits of users.