Increase Natural Gas Energy Efficiency by Sidel Systems USA
Mar 10, 2015
Please let me know if what I have submitted is considered acceptable. Thank you Sid Abma
Manohar Lal Baharani
Apr 10, 2015
The ROI having range of 3 to 6 years, saving energy is proven then it should find fast market ingress. Are that potential barriers for market entry?. Kindly enlighten more on this aspect. Thanks. Manohar
Apr 10, 2015
Manohar Thank you for your reply. We have been doing this Condensing flue gas heat recovery on natural gas and LPG for over 30 years. There are no moving parts to wear out. It requires little or no electricity to operate. It requires little or no maintenance. It is self cleaning on the flue gas side. America is pushing for Increased Energy Efficiency. Our utilities and government have educated them to change their light bulbs and turn off their computers and everything else that has to do with electricity. The Low Hanging Fruit. Natural gas is not seen, is not handled, and even when it leaves the chimney after combustion, there is nothing to see. The barrier is Education and Promotion.
May 3, 2015
Impact Assessment Fellow
Dear Sid Abma, I like the idea about waste heat recovery. It will definitely increase the overall efficiency of the system and decrease the total carbon dioxide emission. I have a question in the part about how much carbon dioxide is reduced. In your proposal, you raised some questions: "How much was wasted? 40% ~ 60% ? At what temperatures?" I was wondering whether you have estimated numbers for these questions, since you have been working on the heat recovery for several decades. These numbers will be very important to estimate how much carbon dioxide can be reduced in this proposal. Please kindly let me know if you have some numbers or references. Thank you! Best, Xiaoyu
Jun 30, 2015
Jul 1, 2015
Hi Xiaoyu As a reply to your question how much energy was wasted, commercial natural gas appliances are typically in the 70 to 84% efficiency range with exhaust temperatures anywhere from 300F to 500F. Industry is typically in the 45 to 80% efficiency range with exhaust temperatures in the range of 400F to 3000F. Our natural gas power plants are approx. 35 to 45% efficient with exhaust temperatures of 200 to 300F. The US EIA states that approx 3.5 Trillion cu.ft was consumed by the commercial market and industry consumed 7.6 Trillion cu.ft and the power plants consumed 8.1 Trillion cu.ft. That is a lot of cu.ft of combusted energy being blown into our atmosphere. How much can be recovered and utilized we be determined by how badly do we want to reduce global warming and CO2 emissions. If all this natural gas was combusted to 90% energy efficiency with an exhaust temperature of approx. 100F this could become a very noticeable difference in outdoor temperature and in CO2 reductions.