December 04 | 2017

Advance Concrete Design: Sustainable and Affordable

-Mr. Saibal Saha

It has been found that more than 50% of the steel produced globally is being used in construction sector. To reduce GHG emissions, if we disregard the debatable CCS (Carbon Capture & Sequestration) process, the available options are two fold: 1. By enhancing the energy efficiency of the production systems, from mining of ores to showcasing the finished goods. 2. By reducing the use of material without compromising the strength and stiffness and vis-a-vis the safety, stability and durability of the system. It has been researched concluded that the global manufacturing sectors for steel, cement and aluminium are already equipped with the best efficiency standards and a further reduction of energy uses or Carbon emissions would not be helpful in solving 50% reduction by 2050. however, by reducing the demand and production of materials that consume copious amount, steel and cement, the energy usage can be monitored and reduced. the following two case studies show the quantity of materials that can be saved with an advanced concrete design systems: the post-tensioned slab system and PT-voided Bi-axial slab system. link : (Page: 59 to 63)

April 09 | 2014

Evaluation of Impact of Shading Devices on Energy

-Mr. Saibal Saha & Dr. Jhumoor Biswas

The aim of this paper is to demonstrate the role of shading devices in the improvement of energy efficiency of buildings in hot dusty and dry tropical regions. The effect of shading in reducing the energy consumption of buildings is investigated by considering a case study of a guest house chosen because of its logical design approach to reduce thermal loads. The building plan, measurements, and details on schedules of building usage activities have been used as input data to a simulation program of the building. Based on the inputs, a thermal building model is developed in trnsys 17 simulation program and the effect of external shading on the building has been explored. It is seen that building design and orientation determine the effectiveness of shading. Movable shading over windows has a significant impact reducing temperatures by about 1.5 °C in each thermal zone. The difference in thermal energy loads of the building calculated from modeling simulations of the base case and the control case utilizing movable shading devices is approximately 8%. A programmable logic controllers (PLC)-based movable shading device has been designed to facilitate optimal shading control. The results enable us to draw inferences regarding the additional contribution of the shading factor in energy saving techniques for buildings. link :

June 06 | 2020

Case study of LAGUNA Factory, Ranchi

-Mr. Saibal Saha

In one business meeting EnSimulated came across a PMC company doing a Garment’s Park at Ranchi Industrial area. When EnSimulated shared its previous design experience of such a project at West Bengal, the establishment introduced us to the project architect from Bangalore, the city in which the owner, LAGUNA Clothing LLP has their India office. After getting the establishment’s plans, EnSimulated suggested Post-Tensioned Slab System instead of conventional RC slab system. After initial contrast, the structural consultant, SPA of Kolkata was agreed with our design and it has been calculated that almost a crore of rupees could be saved by adopting this slab system. The project is stalled due to pandemic but if the country could reopen normally, this would be taken up for detail design and execution.

May 19 | 2018

Case History of Supervisor’s Training Centre (SE Rly.), Kharagpur

-Mr. Saibal Saha

When EnSimulated taken up the green building certification job of 60 years old building of STC, the only environmental features it could boast of were a big green area and one 150 KWp Roof-top Solar Power Plant. In last one & half years it has been transformed with the following features in presence of EnSimulated: 1. Proclaimed the entire premises as tobacco-free. 2. RWH system to recharge > 75% of all roof and non-roof run-off. 3. A composting system to utilize the fallen leaves and cow dung available with local dairy firms. 4. Adding universal design features like ramp, disable friendly toilet, properly marked disable friendly parking, visual signage to help the people with crutch or wheel-chair. 5. Replacing all the existing conventional toilet fixtures with low –flow fixtures having a proven savings of >50% of water use. 6. Exchanged all the lighting, fans, few ACs with 3-5 Star label fixtures which help to reduce the electricity bill by >30%. 7. Substituted all existing house-keeping materials with eco-friendly house-keeping materials to show solidarity with environmental concerns. 8. Transmuted an un-used lecture hall into Yoga/ Meditation room and putting mandatory Yoga/meditation into daily routine of the training curriculum. It could proved to have a far-fetched effect as most of the trainee would ultimately taking up rigorous field work like running a train for 48 hours at a stretch.

September 09 | 2018

Case Study on Hotel Classic at Imphal, Manipur

-Mr. Saibal Saha

EnSimulated has been engaged as ‘Energy Auditing Firm’ by Classic Group of Hotels for its two properties, Hotel Classic and the Classic Hotel, Manipur. During the computation, the earliest thing that struck the team deliberately is an incongruity in total connected load, corresponding demand and metered demand by MSPDCL (Manipur State Power Distribution Company Ltd.). It has been perceived that total connected load and corresponding demand were much less than the metered demand where the metered demand was directly commensurate with the installed capacity of the transformer (75% of the transformer capacity). The transformer has been installed by MSPDCL at the cost of the user. When a letter was put before the MSPDCL, the establishment concurred with the idea and the possessor got a standing rebate of Rs.50K per month from next months. There were many other counsels which could translate into savings of few lacs of rupees per month but without investing a single rupee, they have earned the monetary savings just by allowing an engineering team to look into the day-to-day activities. That’s the triumph of engineering!