Displacement Ventilation, Underfloor Air Distribution as Alternative HVAC Strategies
Two additional alternative HVAC strategies are displacement ventilation and underfloor air distribution. For certain building types, this approach can be a very effective cooling strategy. In delivering conditioned air at floor level, the more buoyant, warmer air is displaced and naturally floats to the ceiling level. As a result of stratified conditioning of only the […]
Integrated HVAC Design: Materials, Systems, and Programming Must Work Together
When it comes to an integrated-design approach to HVAC, there’s no one size fits all. Instead, integrated design is truly a game of reconciling competing demands and developing creative design. On the architectural side, there are requirements to achieve the right aesthetics, materials, and flexibility, while the engineering side has a different set of requirements […]
Energy Savings with HVAC Maintenance
In spite of years of studies, demonstration programs, and published stories to the contrary, most facility organizations today still operate in a reactive mode. Though facility executives know that is far better to schedule maintenance activities using planned and predictive maintenance tools, most continue to spend the bulk of their resources operating reactively. The most […]
Gas vs. Electric Pool Heating
As spring rolls around and winter comes to a close, it’s time to begin opening pools or having new pools installed. Although the cool temperatures of the pool water are enjoyable compared to the hot temperatures, pool heaters are typically a “must have” for all climates. Regardless of your location, at some point you’ll probably […]
Role of filters in HVAC
The filters in your HVAC system are the first and most effective measure in protecting your heating and cooling system. Any HVAC specialist or home improvement guru will tell you, change your filters often. Keeping your system in fresh filters will greatly extend its life expectancy and this small bit of preventative maintenance can save […]
Solar PV quality issues and standardization in Pakistan
By Engr. Faiz Mohammad Bhutta, Renewable Energy Expert and Trainer Brief Introduction of Engr. Faiz Mohammad Bhutta Faiz Muhammad Bhutta is a professional engineer having more 30 years of experience of serving at technical and managerial posts in national and multinational companies Apart from his professional career, He has served as visiting teacher on engineering […]
Magnetic Refrigeration
A new frontier in cooling technology Hafiz Ozair Ahmada , Muhammad Sajid Kamran a)Department of Mechanical Engineering, University of Engineering and Technology, Lahore, 54890, Pakistan. b)School of Engineering and Materials Science, Queen Mary, University of London, Mile End Road, London E1 4NS, UK *Corresponding author: m.s.kamran@uet.edu.pk Magnetic refrigeration is a modern, energy efficient and environmentally […]
10 Ways to Save Money on your Heating Bills
When it’s summer we get a little relief from the dreaded heating bills, but regardless of the time of year there are things you can do to save money. With that in mind, turn your attention to making changes to your property now that will keep it warm during the winter month. Let’s start with […]
10 signs you need a new boiler
1. Age of your boiler All good things come to an end and when a boiler is over 10 years old it may be time to start looking at a replacement. This is true even if the boiler doesn’t seem to have any major faults. Technology has moved on significantly in recent years and the […]
Power substation design and engineering in 8 steps
Building a new substation or retrofitting the old one is a complex process full of design and engineering tasks to be worked on. The main steps in substation design and engineering are as follows: Step 1 – switching system Selection of a substation switching system: ring bus, breaker-and-a-half, etc. based on reliability requirements. Step 2 […]
Farhan Mehboob – LEED PAPER FINAL DRAFT (SUBMISSION COPY)
Case Study G4 Mega Corporate Tower, Karachi LEED compliant MEP design in Pakistan By Mr. Farhan Mehboob 1. INTRODUCTION Buildings use about 40% of global energy, 25% of global water, 40% of global resources, and they emit approximately 1/3 of Green House Gas (GHG) emissions. Given that buildings are such large contributors in impacting our […]
DEIF’s Solar Solutions
Solar Power – The need of the hour Across the world, the need to make the energy portfolio environmental friendly is a pressing need. Among the renewable sources, Solar power is gaining momentum all around the world with the push given by various governments and the abundant solar potential. The increasing demand is driving down […]