The 5th Annual edition IEQ Forum story for 2018 would have to begin in the tranquil shores of the island of Kauai, in Hawaii. In a high-profile move, Tesla, in the first quarter of 2017, deployed a 13MW solar power system, linked to a 13MW/52MWh Power pack System, which came with the promise of powering up the island during daytime and, according to current estimates, up to 10pm. The project, for the Kauai Island Utility Cooperative (KIUC), involves the use of approximately 55,000 solar panels and 272 Power pack units to store the energy generated by the panels. Based on a power-purchase agreement with KIUC, the “solar energy shifting”, utility-scale project will serve over 30,000 customers in the island – Tesla would be selling generated and stored energy at 11 cents per kWh, which according to Tesla would be significantly cheaper than the cost of power that is generated through burning fossil fuels. According to estimates, at full throttle, the project would be instrumental in replacing the use of over two million gallons a year of diesel with clean energy. A significant implication of the project is its clean nature, which opens very interesting possibilities, indeed. Among them, perhaps an answer to the question, ‘How do we balance the need for greater energy-efficiency with the demand for better indoor air quality?’ In 2016, during the 4th edition of the World IEQ Forum, in Dubai, delegates saw an interesting debate unfold on whether the pursuit of greater energy efficiency was at the cost of indoor air quality. Tighter insulation profiles and fewer fresh air changes, the IAQ camp argued, were putting paid to efforts to ensure healthier buildings. They called for many more fresh air changes than the number prescribed by ASHRAE, say. The counter-argument rode on the premise that fresh air changes would mean more energy usage, which would increase indirect emissions. When viewed from that context, the Kauai Island project, if successfully scaled up across the globe, would deem the argument based on indirect emissions irrelevant. Clean energy, available round the clock without any disruption – or minimal disruption that is limited to non-peak hours – and, importantly, able to power the critical mass of HVACR equipment, including energy-intensive large-tonnage chillers – would be as close as we would ever get to energy-utopia and healthy air in the built-environment. The 5th edition of the World IEQ Forum will keep Kauai as the centre-piece to discuss the possibility of a new world order, where IEQ is given the importance it truly deserves among policy-makers, consultants, building owners and equipment manufacturers, among others. Original Source – For more details on our design capabilities, contact us at

BIM Conference 2018 We are as much excited as you are!! Another golden opportunity for us to meet our existing and future clients. We are exhibiting at 6th Annual BIM Conference 2018 in Dubai, UAE. Come and meet us there! Date & Opening Times: 29th & 30th April – 8:30 AM – 6:45 PM Venue:  Habtoor Grand Resort, Al Falea Street, Jumeirah Beach, Dubai, UAE Deinde is a Design and Consultancy firm and hereby we request you to outsource any of your requirements related to BIM Modeling and CFD Analysis. We are an Indian firm and have worked with some reputable firms in UAE (Best Products LLC, DurkeeSox, Vainen, HME Consulting Engineers, Ductsox Mena). Projects we have been part of: Abu Dhabi – Presidential Hangar ventilation Muscat International Airport – Commercial Kitchen Ventilation Double Tree Hilton Dubai – Smoke ventilation system design & verification. We design all kinds of ventilation and cooling systems, and optimize such systems using CFD analysis. CFD analysis helps in eliminating any errors in design before even installing it. Errors could be in the form of hot or cold spots sometimes re-circulation or mixing of hot-cold air. We also simulate contaminants with their prescribed behaviour to see the efficacy of ventilation system. What We Offer:

  • Complete Building Modeling Information (BIM) Service from 3D to 6D, all levels of details from LOD 100 to LOD 500
  • Virtual Design and Construction
  • Construction Documentation
  • 3D coordinated models
  • Architectural, Structural and MEPF modeling
  • Conflict and Clash detection
  • Revisions and Change Management
  • Computational Fluid Dynamics Analysis to optimize ventilation systems


Team Deinde will be attending and exhibiting at the London Build 2017, please visit us @ Booth K11

London Build 2017, now in its third year, is the UK’s largest construction expo dedicated entirely to opportunities in London and the South of England. London Build is attended by thousands of ‘movers & shakers’ in the UK’s construction industry from: contractors, developers, government, architects, solution providers and more.

London Build – a Festival of Construction is free to attend and will be like a Who’s Who of the construction, architecture, property and engineering industries. Attendees include Heathrow Airport, Mott MacDonald, Lendlease, Brookfield Multiplex, AECOM, Wates, Canary Wharf Group Plc, Mace, Arup, NHS Procurement Partnership, TfL, RICS, Carillion, Kier Living, CITB, Laing O’Rourke, First Base Ltd, plus thousands more companies!

This is not your average construction event or expo! This is your one stop shop to gain the latest insight to innovation in products and services in construction, to acquire all of your CPD points under one roof and for you to meet everyone working in construction across London and the South East in a fun, vibrant and productive environment that includes comedy acts, entertainment, a Bavarian Oktoberfest beer festival, competitions, prize giveaways and much, much more!

Opening Times: 

25th October – 9.30am – 5.00pm

26th October – 9.30am – 4.30pm

Venue: Olympia London (Level 1 – Central & West Halls) – Hammersmith Rd, London W14 8UX

Carbon monoxide control is a major challenge in covered car parks. In absence of proper ventilation system, parking facility presents several Internal Air Quality problems. Most serious is the emission of high levels of Carbon-Monoxide (CO) as it is easily absorbed by Hemoglobin in Human Blood inhibiting Oxygen delivery to body causing adverse health effects varying from headache to death. Thus ventilation system should have adequate air movement inside the basement when operating under normal conditions; should be able to satisfactorily dilute/extract CO produced from vehicles.

By using CFD analysis we ensure that the ventilation system meets the NBC, ASHRAE and WHO guidelines for CO exposure and contaminant control etc. The working of staircase pressurization, zone modelling for CO removal can also be analysed. For a large car park the zoning can also be done to utilize lesser fans to control the CO. This optimizes the system for energy saving in the long run.

The main objectives of any such typical study are listed below: -Investigate the performance of the system, so that there is adequate air movement throughout the car park under normal operating conditions. -The event of a CO high level (>100 PPM) is avoided at short term exposure of 30 min [3].

The acceptance contaminant level criterion for parking garages is recommended in ASHRAE 2007 Handbook. According to ASHRAE, the main criterion for car park is the carbon monoxide level, which is to remain below a designated peak value. ‘Parking garages ventilation rate designed to maintain a CO level of 40 mg/m3 (35 ppm) for 1 Hour exposure, with a maximum of 130 mg/m3 (120 ppm) for 15 minute exposure’.

The output of analysis in in the form of report containing velocity profiles, temperature and CO profiles at different planes. In addition the compliance summary with the standards is also provided.

Some images are given below showing the results of CO simulation in Car park.

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