Tuesday, November 23, 2021

Energy Storage Breakthrough - Solid Hydrogen Explained

Saturday, October 2, 2021

Life Cycle Analysis of Cool Roof in Tropical Areas


4th International Conference on Countermeasures to Urban Heat Island (UHI) 2016

Life Cycle Analysis of Cool Roof in Tropical Areas

Zhijun Zhang a,b, Shanshan Tongc*, Haibo Yua

a Tianjin Institute of Surveying and Mapping, Changling Road, Tianjin 300381, China

b School of Resources and Environmental Science, Wuhan University, 129 Luoyu Road, Wuhan 430079, China

c National University of Singapore, 4 Architecture Drive, Singapore 117566, Singapore


In this work, the Complex Fast Fourier Transform (CFFT) method is introduced to predict the roof temperature and heat gain in the tropical country of Singapore. The cost-effectiveness of cool paint and roof ventilation are evaluated through life-cycle analysis.

Cool paint and roof ventilation can provide annual cooling energy savings of 33-57 USD/m2 for the top-floor residential units. The payback period of cool paint is shorter than 2 months in unventilated roof and shorter than 6 months in ventilated roof. Both cool paint and roof ventilation are very energy-efficient and cost-effective in tropical climate.


Space Powered Cooling May Be the Future of Energy

Friday, June 18, 2021

Turning Photons Into Food

In this video Dr. Bruce Bugbee shows the calculations necessary to determine crop yield potential when light is the only limiting factor. This is now widely used to predict yields in indoor agriculture and vertical farming. The approach starts from the efficiency of photosynthesis (measured as quantum yield), expands to include the efficiency of respiration (called carbon use efficiency) and includes photon capture efficiency and harvest index. The model is called the Energy Cascade Model. It has been used by NASA to model the size of a space farm in regenerative food production. It is also used by the USDA to calculate potential yield of agriculture on Earth.

Thursday, April 29, 2021

Wavepiston - a cost-efficient and sustainable wave energy system

Explaining Wavepiston, People, Technology, Business

Price of electricity and desalinated water can be cut in half with wave energy for island communities and remote coastal areas. That is the promise of Wavepiston’s patented technology, based on intensive testing. The Denmark-based company is ready to demonstrate its solution at full scale and is turning to the Seedrs platform to crowdfund final phases of development.

For more information visit our website https://wavepiston.dk/