Matt, As we discussed last night, your idea of using geothermal to heat the water for your radiant heat is fascinating, I just haven't done radiant heat like this before so I'm not sure how the mechanics of the system would be. You might email Gerry or talk to one of your mechanical engineers.
I really like the inventive way you are pulling the air through your building by using your wind turbines, which are also providing electricity for your building. Gerry talked about a similar air flow pattern through his home. I would be interested to see what his thoughts would be on this, I would guess it would spark some additional thoughts from him!
So where are your calcs for sizing your water lines? LOL
VENTILATION: yes from the south almost exclusively during hot weather. Overhang very effective at trapping light breezes. (Minor note: without a vertical offset or an upward slant these overhangs will reject almost all of the March sun (48 degrees) – good for glare, however). Transom (high) exhaust good. Vertical shaft on north probably the easiest way to introduce fire dampers and smoke control in multistory – and to isolate noise. Top transom exhaust: this is shaped like a wind SCOOP – it may capture wind on the south (raise pressure) and reduce the through ventilation. (Take a look at industrial monitors – to create a negative pressure they speed up the wind.) I think this can work for both air exhaust and also max turbine output if you create a venturi with the turbines at the center – the dorm roof might curve into the turbine slot and continue curving (shorter) over and down on the north side. The canopy over might be extended slightly (see comments below) and given an inverse curve. Then not only do you capture more wind but you achieve max velocity at the narrowest gap of the venturi for max tubine speed and lowest pressure to exhaust the max air from inside (which incidentally might interfere with the turbine efficiency – no way to know without simulating or actually testing a physical model?). Looks like it could work well – how do you vent the studio tower? For really hot weather you might consider de-humidification of fresh air and ceiling fans and careful (to avoid condensation) radiant cooling of the floors and the walls – this can be very effective in hopelessly humid weather and I think has been used in Europe (less humid and hot there, however).
Nice composite – warm colored new against bluish existing.
North façade mechanical louvers: is this the best place to intake fresh air? The higher (and the further away from diesel exhaust) the better.
New central roof trusses: now much more subtle and less overdone – less depth for the overhang/louvers and greatest depth for the studio spans. It’s nice to watch this evolution. Also, the break in the south curtain wall planes helps the curve on the south in a way that complements the other side.
Color from the northeast: you have chosen to unify the central mass – but perhaps your curve wants to be unified in color? Just a thought – perhaps too boring. How about subtle changes in the curve and more contrast at the corner of the mass (to de-emphasize it) so that the curve reads stronger? The curve is the thing!
Northwest view: turbines make a great cornice and are in the best location. Much wind, however, may slip by over the top of this cornice. How to prevent and perhaps double the wind pressure? Extend the overhang to capture the wind, which would otherwise slide by. The Americas cup sailboats had deep keels with a horizontal flat plate on the bottom to guide the moving water horizontally around the hydrodynamic keel section (for max. lift) instead of loosing it at the bottom. A projecting plate at the vertical edges of your north wall would also prevent pressure loss but this would perhaps ruin your profile. This latter might be achieved by a flush plate and a recessed wall (vertical) that would guide the top floors’ wind into the turbine slot. Perhaps too fussy? Also, turbines on the northeast curve look incidental and would harvest less wind than the higher roof, which also faces the prevailing cool weather winds.
It’s really fun to watch this design evolve – it sort of grows – and for the better I think. Colors: very appropriate to the brick neighborhood without slavishly copying. Are the louvers to dark? It would be interesting to compare these dark with lighter in terms of light contrasts as seen from the interior. White might be too glary (and perhaps too visually busy outside). But a little lighter than say the façade) and perhaps more neutral) might bounce more diffuse light inside – especially at through the transoms above.
VENTILATION: I don't know if you have seen my details but I have designed an operable louver system that allows the individual to control the sun gain or block as preferred per room window. I was starting to create a venturi system in my earlier sections by didn't have time to model those. I will add a section to my list of drawings. Fresh air louvers are more than required I feel and the lower few could just be decorative. That will put the first air draw from approximately 50' above the turnpike. I'm hoping this will be sufficient. I thought about this when placing them but our site is surrounded by traffic so the North became the least intrusive to my design. Maybe they should move to the roof?
TRUSSES: I am using a stretched fabric roof material on the top and transparent membrane on the bottom of these trusses. Using fans between the trusses in elevation at the north side will draw air from vent slots along the East West direction across the studio space. I will add a section to show this.
TURBINES: I will work to develope a stronger roof top plane over these turbines to maximize wind collection.
4 comments:
Matt,
interesting ventilation idea. I would hope it works... check with Gerry. Thanks
Matt,
As we discussed last night, your idea of using geothermal to heat the water for your radiant heat is fascinating, I just haven't done radiant heat like this before so I'm not sure how the mechanics of the system would be. You might email Gerry or talk to one of your mechanical engineers.
I really like the inventive way you are pulling the air through your building by using your wind turbines, which are also providing electricity for your building. Gerry talked about a similar air flow pattern through his home. I would be interested to see what his thoughts would be on this, I would guess it would spark some additional thoughts from him!
So where are your calcs for sizing your water lines? LOL
Keep up the great work.
COMMENTS: LATEST FIRST:
VENTILATION: yes from the south almost exclusively during hot weather. Overhang very effective at trapping light breezes. (Minor note: without a vertical offset or an upward slant these overhangs will reject almost all of the March sun (48 degrees) – good for glare, however). Transom (high) exhaust good. Vertical shaft on north probably the easiest way to introduce fire dampers and smoke control in multistory – and to isolate noise. Top transom exhaust: this is shaped like a wind SCOOP – it may capture wind on the south (raise pressure) and reduce the through ventilation. (Take a look at industrial monitors – to create a negative pressure they speed up the wind.) I think this can work for both air exhaust and also max turbine output if you create a venturi with the turbines at the center – the dorm roof might curve into the turbine slot and continue curving (shorter) over and down on the north side. The canopy over might be extended slightly (see comments below) and given an inverse curve. Then not only do you capture more wind but you achieve max velocity at the narrowest gap of the venturi for max tubine speed and lowest pressure to exhaust the max air from inside (which incidentally might interfere with the turbine efficiency – no way to know without simulating or actually testing a physical model?). Looks like it could work well – how do you vent the studio tower? For really hot weather you might consider de-humidification of fresh air and ceiling fans and careful (to avoid condensation) radiant cooling of the floors and the walls – this can be very effective in hopelessly humid weather and I think has been used in Europe (less humid and hot there, however).
Nice composite – warm colored new against bluish existing.
North façade mechanical louvers: is this the best place to intake fresh air? The higher (and the further away from diesel exhaust) the better.
New central roof trusses: now much more subtle and less overdone – less depth for the overhang/louvers and greatest depth for the studio spans. It’s nice to watch this evolution. Also, the break in the south curtain wall planes helps the curve on the south in a way that complements the other side.
Color from the northeast: you have chosen to unify the central mass – but perhaps your curve wants to be unified in color? Just a thought – perhaps too boring. How about subtle changes in the curve and more contrast at the corner of the mass (to de-emphasize it) so that the curve reads stronger? The curve is the thing!
Northwest view: turbines make a great cornice and are in the best location. Much wind, however, may slip by over the top of this cornice. How to prevent and perhaps double the wind pressure? Extend the overhang to capture the wind, which would otherwise slide by. The Americas cup sailboats had deep keels with a horizontal flat plate on the bottom to guide the moving water horizontally around the hydrodynamic keel section (for max. lift) instead of loosing it at the bottom. A projecting plate at the vertical edges of your north wall would also prevent pressure loss but this would perhaps ruin your profile. This latter might be achieved by a flush plate and a recessed wall (vertical) that would guide the top floors’ wind into the turbine slot. Perhaps too fussy? Also, turbines on the northeast curve look incidental and would harvest less wind than the higher roof, which also faces the prevailing cool weather winds.
It’s really fun to watch this design evolve – it sort of grows – and for the better I think.
Colors: very appropriate to the brick neighborhood without slavishly copying. Are the louvers to dark? It would be interesting to compare these dark with lighter in terms of light contrasts as seen from the interior. White might be too glary (and perhaps too visually busy outside). But a little lighter than say the façade) and perhaps more neutral) might bounce more diffuse light inside – especially at through the transoms above.
Gerry,
Thank you for the comments!
VENTILATION: I don't know if you have seen my details but I have designed an operable louver system that allows the individual to control the sun gain or block as preferred per room window. I was starting to create a venturi system in my earlier sections by didn't have time to model those. I will add a section to my list of drawings. Fresh air louvers are more than required I feel and the lower few could just be decorative. That will put the first air draw from approximately 50' above the turnpike. I'm hoping this will be sufficient. I thought about this when placing them but our site is surrounded by traffic so the North became the least intrusive to my design. Maybe they should move to the roof?
TRUSSES: I am using a stretched fabric roof material on the top and transparent membrane on the bottom of these trusses. Using fans between the trusses in elevation at the north side will draw air from vent slots along the East West direction across the studio space. I will add a section to show this.
TURBINES: I will work to develope a stronger roof top plane over these turbines to maximize wind collection.
Thanks again for the comments.
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